Sub2API v1.0 - AI API 网关（二开初始版本，基于上游 Wei-Shaw/sub2api）

backend/internal/handler/admin/user_handler_batch_limits_test.go

@@ -0,0 +1,146 @@
+package admin
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/gin-gonic/gin"
+	"github.com/stretchr/testify/require"
+)
+
+type batchLimitsAdminServiceStub struct {
+	*stubAdminService
+	calls []batchLimitsAdminServiceCall
+}
+
+type batchLimitsAdminServiceCall struct {
+	userIDs     []int64
+	concurrency *int
+	rpmLimit    *int
+}
+
+func cloneIntPointer(value *int) *int {
+	if value == nil {
+		return nil
+	}
+	cloned := *value
+	return &cloned
+}
+
+func (s *batchLimitsAdminServiceStub) BatchUpdateLimits(_ context.Context, userIDs []int64, concurrency, rpmLimit *int) (int, error) {
+	s.calls = append(s.calls, batchLimitsAdminServiceCall{
+		userIDs:     append([]int64(nil), userIDs...),
+		concurrency: cloneIntPointer(concurrency),
+		rpmLimit:    cloneIntPointer(rpmLimit),
+	})
+	return len(userIDs), nil
+}
+
+func setupBatchLimitsRouter(serviceStub service.AdminService) *gin.Engine {
+	gin.SetMode(gin.TestMode)
+	router := gin.New()
+	handler := NewUserHandler(serviceStub, nil, nil, nil, nil, nil, nil)
+	router.POST("/api/v1/admin/users/batch-limits", handler.BatchUpdateLimits)
+	return router
+}
+
+func postBatchLimits(t *testing.T, router *gin.Engine, body []byte) *httptest.ResponseRecorder {
+	t.Helper()
+	recorder := httptest.NewRecorder()
+	request := httptest.NewRequest(
+		http.MethodPost,
+		"/api/v1/admin/users/batch-limits",
+		bytes.NewReader(body),
+	)
+	request.Header.Set("Content-Type", "application/json")
+	router.ServeHTTP(recorder, request)
+	return recorder
+}
+
+func TestUserHandlerBatchUpdateLimitsAcceptsPartialAndZeroValues(t *testing.T) {
+	tests := []struct {
+		name                string
+		body                string
+		expectedConcurrency *int
+		expectedRPMLimit    *int
+	}{
+		{name: "concurrency only", body: `{"user_ids":[1,2],"concurrency":10}`, expectedConcurrency: pointerTo(10)},
+		{name: "both limits", body: `{"user_ids":[1,2],"concurrency":8,"rpm_limit":60}`, expectedConcurrency: pointerTo(8), expectedRPMLimit: pointerTo(60)},
+		{name: "explicit zero", body: `{"user_ids":[1,2],"concurrency":0,"rpm_limit":0}`, expectedConcurrency: pointerTo(0), expectedRPMLimit: pointerTo(0)},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			serviceStub := &batchLimitsAdminServiceStub{stubAdminService: newStubAdminService()}
+			recorder := postBatchLimits(t, setupBatchLimitsRouter(serviceStub), []byte(test.body))
+
+			require.Equal(t, http.StatusOK, recorder.Code)
+			require.Len(t, serviceStub.calls, 1)
+			require.Equal(t, []int64{1, 2}, serviceStub.calls[0].userIDs)
+			require.Equal(t, test.expectedConcurrency, serviceStub.calls[0].concurrency)
+			require.Equal(t, test.expectedRPMLimit, serviceStub.calls[0].rpmLimit)
+
+			var response struct {
+				Data struct {
+					Affected int `json:"affected"`
+				} `json:"data"`
+			}
+			require.NoError(t, json.Unmarshal(recorder.Body.Bytes(), &response))
+			require.Equal(t, 2, response.Data.Affected)
+		})
+	}
+}
+
+func TestUserHandlerBatchUpdateLimitsRejectsInvalidRequests(t *testing.T) {
+	tooManyIDs := make([]int64, 501)
+	for index := range tooManyIDs {
+		tooManyIDs[index] = int64(index + 1)
+	}
+	tooManyBody, err := json.Marshal(map[string]any{"user_ids": tooManyIDs, "rpm_limit": 10})
+	require.NoError(t, err)
+
+	tests := []struct {
+		name string
+		body []byte
+	}{
+		{name: "no limits", body: []byte(`{"user_ids":[1]}`)},
+		{name: "invalid json", body: []byte(`{"user_ids":`)},
+		{name: "missing user ids", body: []byte(`{"rpm_limit":10}`)},
+		{name: "more than 500 ids", body: tooManyBody},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			serviceStub := &batchLimitsAdminServiceStub{stubAdminService: newStubAdminService()}
+			recorder := postBatchLimits(t, setupBatchLimitsRouter(serviceStub), test.body)
+
+			require.Equal(t, http.StatusBadRequest, recorder.Code)
+			require.Empty(t, serviceStub.calls)
+		})
+	}
+}
+
+func TestUserHandlerBatchUpdateLimitsAllUsesEveryListedUser(t *testing.T) {
+	base := newStubAdminService()
+	base.users = []service.User{{ID: 11}, {ID: 12}, {ID: 13}}
+	serviceStub := &batchLimitsAdminServiceStub{stubAdminService: base}
+	recorder := postBatchLimits(
+		t,
+		setupBatchLimitsRouter(serviceStub),
+		[]byte(`{"all":true,"user_ids":[999],"rpm_limit":0}`),
+	)
+
+	require.Equal(t, http.StatusOK, recorder.Code)
+	require.Len(t, serviceStub.calls, 1)
+	require.Equal(t, []int64{11, 12, 13}, serviceStub.calls[0].userIDs)
+	require.Equal(t, 1, base.lastListUsers.calls)
+}
+
+func pointerTo(value int) *int {
+	return &value
+}